This is a longer and better quality upgrade of a previous posting. "Olga's House of Shame" (1964) is the third in the notorious sexploitation series starring Audrey Campbell. From hack director Joseph P. Mawra and sleaze producer George Weiss (who also produced "Glen or Glenda" and countless exploitation and nudie flicks).
This series shows the influence of Irving Klaw's S&M photos and stag movies of Bettie Page et al. A surprise hit, the trilogy paved the way for the hard-edged "roughie" sex-and-violence films of the mid-late 60s (a reaction against the fluffy nudie-cuties of the time) and also anticipated the psycho-stalker films of the 70s and 80s.
This is part of a series of postings on vintage underground films. Search for "fetish" and "stag film" to see more.